Means for fastening sights on firearms.



P. MAUSER.

MEANS FOB/ FASTENIN G SIGHTS 0N PIREARMS.

APPLIoATIoN FILED JUNE 23, 1909.

I l 1,004,180. Patented sepnzs, 1911.

legi

l il

PAUL MAUSER, 0F OBERNDORF-ON-TI-IE-NECKAR, GERMANY.

MEANS FOR FASTENING SIG-HTS ON FIREARMS.

Specification of Letters Patent.

Patented Sept. 26, 1911.

Application filed June 23, 1909. Serial No. 503,831.

To all whom 'it may concern:

Be it known that I, PAUL MAUSER, royal privy commercial councilor, asubject of the King of lVurttemberg, residing atOberndorf-on-the-Neclrar, in the Kingdom of Vvlurttemberg, Germany, haveinvented cer tain new and useful Improvements Relating to Means forFastening Sights on Firearms, of which the following is a full, clear,and exact description.

With modern fire-arms, especially rifles, the usual method of fasteningthe fore and back sight, or the parts carrying the same, is to solderthem to the barrel. This method of fastening has proved to beunsatisfactory, especially with self loading rifles with whichfrequently a large number of shots are fired, as the solder melts owingto the barrel becoming hot.

The object of the present invention is to provide a substitute for thisunsatisfactory method of fastening by soldering, whereby the parts ofthe sight are equally well secured against twisting and longitudinalmovement, and whereby another advantage is obtained which is not presentwhen solder is employed, namely a simple and easy adjustability.

This new method of fastening consists in the parts of fore and backsight being secured against longitudinal motion by being screwed on, andagainst twisting. by

being clamped.

In the accompanying drawing which rep resents a back sight constructedin accordance with the invention, Figures l, 2 and 3 are respectively aside elevation, a longitudinal section and a transverse section of theback sight.

The rear part of the tubular foot fw of the back sight o has formed atits rear end a split clamping sleeve m, having jaws y, which isinternally screw threaded. A corresponding screw thread is also providedon the barrel Z on which the back sight with the clamping sleeve m isscrewed. The clamping sleeve is secured in position by the screw e,whereby the screw threads are rmly pressed together and thus prevent theback sight from being twisted or longitudinally displaced. The frontsight may be of similar construction. It will be understood that thesight can be easily and rapidly adjusted by simply releasing the screw.This method of fastening the sight `is not influenced in the least towhatever extent the barrel is heated, so that the sight can always beadjusted in spite of the heat and without any danger of fouling bymolten solder. p

That I claim as my invention and desire to secure by patent is:

A fire arm having a threaded barrel and a sight having clamping armsembracing said barrelfsaid clamping arms being screw threaded to engagethe screw threads of the barrel, and said sight having a sleeve port-ionsurrounding said barrel.

In witness whereof, I have khereunto signed my name in the presence oftwo subscribing witnesses.

PAUL MAUsER.

Witnesses ERNEST ENTEN MANN, PAULINE KLAiER.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents, Washington, D. C.

